Today's Message Index:
----------------------
1. 09:08 AM - Rudder (Thomas Smith)
2. 09:37 AM - Re: Rudder (Brian Lloyd)
3. 09:42 AM - CJ prop Dia. (ALEXGTPROPELLERS)
4. 12:39 PM - Re: Rudder (Dale)
5. 03:17 PM - Fly in the Bahamas. (Gianenrico)
6. 03:47 PM - Re: Fly in the Bahamas. (Brian Lloyd)
7. 05:31 PM - Re: Fly in the Bahamas. (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
8. 06:00 PM - Re: Rudder (A. Dennis Savarese)
9. 08:11 PM - Re: Re: Rudder (Walter Lannon)
10. 08:22 PM - Re: CJ prop Dia. (Walter Lannon)
Message 1
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We had loose cotton/muslim on the control surfaces, especially the ailerons
, of our 1983 Yak which was recovered in 2004.- They were removed from th
e plane, had tautening dope applied, then painted with Randolph primer fill
er (3 coats) and Randolph butyrate dope (4 coats).=0A=0AWhen we tried to re
install them on to the plane, all fit well except the rudder.- The middle
attachment pin on the rudder was- out of alignment about 1/16 of an inch
, just enough that it wouldn't go on.- Apparently the tautening dope or t
he paint drew the fabric tight enough to warp the rudder frame.=0A=0AAny su
ggestions on how to resolve this problem will be appreciated.- I realize
we can recover the rudder and start over, but I hate to do that since it is
covered in serviceable fabric and just painted.=0A=0ATom Smith=0Athomas_cs
mith@yahoo.com=0A
Message 2
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On Fri, Dec 30, 2011 at 9:05 AM, Thomas Smith <thomas_csmith@yahoo.com>wrote:
> When we tried to reinstall them on to the plane, all fit well except the
> rudder. The middle attachment pin on the rudder was out of alignment
> about 1/16 of an inch, just enough that it wouldn't go on. Apparently the
> tautening dope or the paint drew the fabric tight enough to warp the rudder
> frame.
>
My concern would be that forcing it into place would cause unbalanced loads
on the structure of the rudder, possibly causing it to fail at some point.
Another thing to consider is that the underlying rudder structure may have
been compromised at some time and have hidden damage, which is now showing
up with the fabric properly tightened.
So, IMHO, there is only one right answer: open up the rudder, inspect and
(possibly) repair the structure, and properly recover.
Lastly, have you ever tried to fly an airplane with a failed rudder that is
fluttering? How up-to-speed are you on your egress procedures? Under heavy
G-loads? Parachute freshly repacked? Uh huh.
Just do it right.
--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
brian@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
Message 3
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HI all.
Is there someone that kindly can confirm me if CJ-6A can run a 98" prop diameter
and the stock engine HP are no more than 330 HP @ max 2200 prop RPM ?
Fresh air for J9-G1 hubs shortly !
Happy new year.
Alex Tonini
www.gt-propellers.com
www.gt-propellers.ca
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=362010#362010
Message 4
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To eliminate that problem the rudder needs to be covered in a jig that holds the
alignment while the fabric is tightened . This happens in almost all cases
and does not mean you have structural issues. The jig is simple but needs to be
used. You might try putting in on by pulling with two people and a rope around
the hinge. leave it for about a week and see if it will relax, it will to
a extent, or use some heat to use the rudder post as a jig as a last resort to
re-stretch the fabric 9 be real careful.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=362028#362028
Message 5
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| Subject: | Fly in the Bahamas. |
Guys,
Anybody knows a flyschool in the Bahamas renting airplanes for a ride? Gianenrico@gmail.com
Thanks
Gian
LY AFJ
Inviato da iPad
>
> http://forums.matronics.com/viewtopic.php?p=362010#362010
>
>
>
>
>
>
>
>
>
>
Message 6
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| Subject: | Re: Fly in the Bahamas. |
On Fri, Dec 30, 2011 at 3:14 PM, Gianenrico <gianenrico@gmail.com> wrote:
>
> Guys,
>
>
> Anybody knows a flyschool in the Bahamas renting airplanes for a ride?
> Gianenrico@gmail.com
Where in the Bahamas? Saying "in the Bahamas" is like saying, "in the
United States". The Bahamas are pretty big. It takes me 4 hours to fly from
Ft. Lauderdale to Great Inagua, pretty much the length of the Bahamas chain.
OTOH you aren't like to find any sort of plane rental on any island other
than New Providence or Grand Bahama. Down Island you just find strips you
can use if you have your own plane.
But if you take your own plane you can have a great time island hopping.
Just be prepared to tanker fuel as very few strips have any fuel.
--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
brian@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
Message 7
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| Subject: | Fly in the Bahamas. |
Yes, but ... do you know of anyplace in the Bahamas giving rides?
________________________________
From: owner-yak-list-server@matronics.com on behalf of Brian Lloyd
Sent: Fri 12/30/2011 6:44 PM
Subject: Re: Yak-List: Fly in the Bahamas.
On Fri, Dec 30, 2011 at 3:14 PM, Gianenrico <gianenrico@gmail.com> wrote:
Guys,
Anybody knows a flyschool in the Bahamas renting airplanes for a ride? Gianenrico@gmail.com
Where in the Bahamas? Saying "in the Bahamas" is like saying, "in the United States".
The Bahamas are pretty big. It takes me 4 hours to fly from Ft. Lauderdale
to Great Inagua, pretty much the length of the Bahamas chain.
OTOH you aren't like to find any sort of plane rental on any island other than
New Providence or Grand Bahama. Down Island you just find strips you can use if
you have your own plane.
But if you take your own plane you can have a great time island hopping. Just be
prepared to tanker fuel as very few strips have any fuel.
--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
brian@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
Message 8
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My sentiments exactly
Dennis
Sent from my iPhone
On Dec 30, 2011, at 10:34 AM, Brian Lloyd <brian@lloyd.com> wrote:
> On Fri, Dec 30, 2011 at 9:05 AM, Thomas Smith <thomas_csmith@yahoo.com> wr
ote:
> When we tried to reinstall them on to the plane, all fit well except the r
udder. The middle attachment pin on the rudder was out of alignment about 1
/16 of an inch, just enough that it wouldn't go on. Apparently the tautenin
g dope or the paint drew the fabric tight enough to warp the rudder frame.
>
> My concern would be that forcing it into place would cause unbalanced load
s on the structure of the rudder, possibly causing it to fail at some point.
Another thing to consider is that the underlying rudder structure may have b
een compromised at some time and have hidden damage, which is now showing up
with the fabric properly tightened.
>
> So, IMHO, there is only one right answer: open up the rudder, inspect and (
possibly) repair the structure, and properly recover.
>
> Lastly, have you ever tried to fly an airplane with a failed rudder that i
s fluttering? How up-to-speed are you on your egress procedures? Under heavy
G-loads? Parachute freshly repacked? Uh huh.
>
> Just do it right.
>
> --
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> brian@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
>
>
>
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Message 9
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Dale;
After having re-covered all control surfaces from CJ's, T6's, Dc3's, Beech
Staggerwing, etc, etc over the last 50 years or so it seems I obviously
don't know how!
I have no idea what you are talking about. Perhaps you are from a different
planet where these things are done better?
Walt
----- Original Message -----
From: "Dale" <hdinamic@qwest.net>
Sent: Friday, December 30, 2011 12:36 PM
Subject: Yak-List: Re: Rudder
>
> To eliminate that problem the rudder needs to be covered in a jig that
> holds the alignment while the fabric is tightened . This happens in
> almost all cases and does not mean you have structural issues. The jig is
> simple but needs to be used. You might try putting in on by pulling with
> two people and a rope around the hinge. leave it for about a week and see
> if it will relax, it will to a extent, or use some heat to use the rudder
> post as a jig as a last resort to re-stretch the fabric 9 be real careful.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=362028#362028
>
>
>
Message 10
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| Subject: | Re: CJ prop Dia. |
Alex;
J9-G1 dia is 94". Ground clearance will probably tolerate 98" but that
would need confirmation and a flat oleo/flat tire evaluation.
Engine is 285 HP and TO RPM is 2350.
Walt
----- Original Message -----
From: "ALEXGTPROPELLERS" <info@gt-propellers.com>
Sent: Friday, December 30, 2011 9:39 AM
Subject: Yak-List: CJ prop Dia.
> <info@gt-propellers.com>
>
> HI all.
> Is there someone that kindly can confirm me if CJ-6A can run a 98" prop
> diameter and the stock engine HP are no more than 330 HP @ max 2200 prop
> RPM ?
>
> Fresh air for J9-G1 hubs shortly !
>
> Happy new year.
>
> Alex Tonini
>
> www.gt-propellers.com
> www.gt-propellers.ca
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=362010#362010
>
>
>
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